10/08/2008 @ 6:00PM

In Pictures: The 10 Sports Franchises Most Likely To Move

San Francisco 49ers

NFL

Value: $865 million (30/32)

Value three years ago: $699 million (26/32)

Market size: 2.2 million (No. 12 nationally)

The Niners have dropped four spots in the valuations rankings since 2005. Revenues are second lowest in the league. If a new football stadium doesn’t rise in the Bay Area to replace either San Francisco’s Candlestick Park or Oakland’s McAfee Stadium (both ancient by modern standard), one of the two teams will undoubtedly move. The Raiders’ more passionate fan base makes them more likely to stay–though quirky owner Al Davis has already taken them to Los Angeles and back once.